Attachment for harrows.



PATENTED JUNE 12, 1906.

W. R. SUMMERS.

ATTACHMENT FOR HARROWS.

APPLICATION FILED JAN.25, 190e,

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to make and use the UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented June 12, 1906.

Application filed January. 25, 1906. Serial No. 297,824.

To all whom it may concern:

Be it known that I, WARREN R. SUMMERS, a citizen of the United States,residing at Georgetown, in the county of Floyd and State of Indiana,haveinvented certain new and useful Improvements in Attachments forHarrows and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains same.

My invention relates to draft attachments for harrows and its object isto provide a device of this character which is capable of being quicklyadjusted so as to shift the line of draft to any desired angle inrelation to the longitudinal center of the harrow, thereby enabling theoperator to prevent the rear end of the harrow from swinging out of linewhen being drawn over an inclined surface, such as a hillside.

A great objection heretofore experienced in the use of a harrow has beenthe tendency of the end thereof to swing or slide laterally down aninclined surface, thereby causing the teeth thereon to move forward inalinement instead of out of alinement.

My invention consists of a novel arrangement of devices whereby theoperator can quickly shift the harrow-body in its relation to thedraft-animals, so that the line of draft will be at an angle to thelongitudinal center of the harrow, and therefore said harrow cannot sagso that its teeth will move out of proper position in relation to thedirection of the movement.

The invention also consists of the further novel features ofconstruction and combination of parts, the preferred form whereof willbe hereinafter made clearly apparent, reference being had to theaccompanying drawings, which are made a part of this application, and inwhich Figure 1 is a perspective view of a harrow having my improvedattachment connected thereto. Fig. 2 is an enlarged plan view of theattachment. Fig. 3 is a section on line 3 3, Fig. 2. Fig. 4 is a sectionon line 4 4, Fig. 2, and Fig. 5 is a section on line 5 5, Fig. 4.

Referring to the figures by numerals of reference, 1 is the body of aharrow having teeth 2 of any desired construction and provided with afront bar 3 at its forward end. A draft-bar 4 is secured to the centerof bar 3 by means of a link 5, and this draft-bar has an opening 6therein, which is disposed above a substantially semicircularsupporting-bar 7, which is concentric with the point of con nection oflink 5 with bar 3. A bracket 8 is fastened to the lower surface of bar 4and extends under the opening 6. This bracket also extends under thesupporting-bar 7 and is adapted to slide thereunder. A series. ofopenings 9 are formed within the supportingbar 7 and are adapted to bebrought successively into registration with the opening 6. A bottomplate 10 is disposed under and in contact with the bracket 8, and a topplate 1 1 is located on top of the draft-bar 4, said top plate 1 1having an opening 12 therein, which registers with the opening 6. Acap.13 in the form of a U-shaped plate, having lateral flanges 14, isdisposed upon top plate 11 and is fastened thereto by means of bolts 15,which also extend downward through the bottom plate 10 and at oppositesides of the draft-bar 4 and supporting-bar 7. The cap 18 is provided atits center with an opening 16, in which is slidably mounted a stem 17,projecting upward from a locking-pin 18, which is normally held seatedwithin the openings 12, 6, and 9 by means of a coiled spring 19, whichis interposed between the pin 18 and the upper portion of the cap 13 andsurrounds stem 17. A lug 20 extends laterally from pin 18, and a cord 21is fastened to it and projects through an opening 22 in cap 13 to anypoint where it can be conveniently grasped by the operator. The bolts 15are preferably provided with sleeves 23, which are interposed betweenthe top and bottom plates 11 and 10 and prevent binding of the bars 4and 7.

It will be understood that when the harrow is being pulled along levelground the draftbar 4 is secured in alinement with the longitudinalcenter of the harrow, it being held in such position by the pin 18engaging the proper opening 9 in bar 7. Should the rear portion of theharrow sag to one side when the device is drawn over an incline, theoperator can quickly shift the line of draft in relation to thelongitudinal center of the harrow by pulling the cord 21, so as to raisethe pin 18 and release the bar 7 therefrom. The harrow can then bepushed laterally until it assumes a desired angle to the line of draft,whereupon the cord 21 can be released and the pin will spring intoengagement with the nearest opening 9, and thereby lock the parts inadjusted position. The harrow can then be drawn over the incline and theteeth thereof will be maintained in proper relation to the direction ofmovement and will not move into position one behind the other.

The attachment can be very readily attached to any form of harrow andwill be found to be of great utility.

What I claim is- 1. An attachment for harrows comprising a pivoteddraft-bar, a bracket secured thereunder, a top and a bottom platesecured above the draft-bar and below the bracket respectively, a casecured upon the top plate, an aperture supporting-bar extending underthe draftbar and within the bracket, said supporting-bar having a seriesof apertures therein, and a spring-pressed locking device mounted withinthe cap and draft-bar and adapted to be seated in any aperture in thesupporting-bar.

2. An attachment for harrows comprising a pivoted draft-bar, a bracketsecured thereunder, a top and a bottom plate secured above the draft-barand below the bracket respectively, a cap secured upon the top plate, anapertured supporting-bar extending under the draft-bar and within thebracket, said snpportingbar having a series of apertures therein, aspring-pressed locking-pin slidably mounted within the cap and draftbarand adapted to be seated in anyof the apertures in the supporting-bar,and a flexib e actuating-cord connected to the pin and extending fromthe cap.

In testimony whereof I have signed my name to this specification in thepresence of 35 two subscribing witnesses.

WARREN R. SUMMERS.

Witnesses:

J. A. WRIGHT, O. W. BYERLEY.

